Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Ottawa Municipal Airport (KOWI)

Lat: 38.54°NLon: 95.25°WElev: 958ft.

Fair

100°F

38°C

Humidity 31%
Wind Speed S 12 mph
Barometer 29.92 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 31 Aug 3:55 pm CDT
Extended Forecast for

4 Miles NW Rantoul KS

Heat Advisory August 31, 04:01pm until August 31, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 31, 04:01pm until August 31, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 100 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Southwest wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 100. South wind around 10 mph.
Tonight
Clear, with a low around 75. South wind around 5 mph.
Tuesday
Sunny and hot, with a high near 99. Southwest wind 5 to 10 mph.
Tuesday Night
Clear, with a low around 76. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 77. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 97. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 76. South wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 98. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 96.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Rantoul KS
 38.57°N 95.14°W
3:01 pm CDT Aug 31, 2026
4pm CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database